According to a Microsoft press release today, there will be some love for Xbox Live. One hour after the 2nd trailer is released on the official GTA IV site and Yahoo! Games (12pm EDT) tomorrow, it will also be released on the Xbox LIVEŽ Marketplace at 1pm EDT/10am PST. To celebrate this, Live subscribers will have access to a 360 Dashboard Theme and Gamer Pictures for GTA IV. Whether or not these will be free is yet to be known. More details as they become available.

To celebrate the release of the second trailer, you can also download exclusive Grand Theft Auto IV theme and gamer pics from Marketplace.